This is a newie to me, and to ROMRaider too by the looks of things.
Look at this thread
viewtopic.php?f=54&t=4719&p=23833 for some direction in starting. You'll probably have to do most of it yourself.
There is a D2UH001M ROMRaider def; I'd be starting there and seeing if it's close.
I made a start on it for you.